diff --git a/data/grid5000/sites/nancy/network_equipments/gw-nancy.json b/data/grid5000/sites/nancy/network_equipments/gw-nancy.json
index bc274e812be2b646842287a73920b68dabec8aac..18c4538e1a6886a4d61b1b464da9ef1f24617188 100644
--- a/data/grid5000/sites/nancy/network_equipments/gw-nancy.json
+++ b/data/grid5000/sites/nancy/network_equipments/gw-nancy.json
@@ -1,4 +1,5 @@
 {
+  "backplane_bps": 346000000000,
   "channels": {
     "naming_pattern": "Po%CHANNELID%"
   },
@@ -8,7 +9,9 @@
 
     },
     {
+      "backplane_bps": 14400000000,
       "kind": "other",
+      "model": "J8702A",
       "naming_pattern": "%LINECARD:A%%PORT%",
       "ports": [
         {
@@ -124,7 +127,9 @@
       "rate": 1000000000
     },
     {
+      "backplane_bps": 14400000000,
       "kind": "switch",
+      "model": "J8708A",
       "naming_pattern": "%LINECARD:A%%PORT%",
       "ports": [
         {
@@ -146,7 +151,9 @@
       "rate": 1000000000
     },
     {
+      "backplane_bps": 14400000000,
       "kind": "switch",
+      "model": "J8708A",
       "naming_pattern": "%LINECARD:A%%PORT%",
       "ports": [
         {
@@ -168,7 +175,9 @@
       "rate": 1000000000
     },
     {
+      "backplane_bps": 14400000000,
       "kind": "switch",
+      "model": "J8708A",
       "naming_pattern": "%LINECARD:A%%PORT%",
       "ports": [
         {
@@ -194,7 +203,9 @@
       "rate": 1000000000
     },
     {
+      "backplane_bps": 14400000000,
       "kind": "virtual",
+      "model": "J8707A",
       "naming_pattern": "%LINECARD:A%%PORT%",
       "ports": [
         {
@@ -210,13 +221,14 @@
 
         },
         {
+          "kind": "virtual",
           "uid": "renater-nancy"
         }
       ],
       "rate": 10000000000
     }
   ],
-  "model": "HP Procurve 5406zl",
+  "model": "HP Procurve 5406zl J8697A",
   "routes": {
 
   },
diff --git a/data/grid5000/sites/nancy/network_equipments/sgraphene1.json b/data/grid5000/sites/nancy/network_equipments/sgraphene1.json
index 3558a94a639e3489cf7557e55a162a89f3353911..bd6b24c51edd1143c4ad1436e9c03f4cbaf9221a 100644
--- a/data/grid5000/sites/nancy/network_equipments/sgraphene1.json
+++ b/data/grid5000/sites/nancy/network_equipments/sgraphene1.json
@@ -1,4 +1,5 @@
 {
+  "backplane_bps": 176000000000,
   "channels": {
     "naming_pattern": "Po%CHANNELID%"
   },
diff --git a/data/grid5000/sites/nancy/network_equipments/sgraphene2.json b/data/grid5000/sites/nancy/network_equipments/sgraphene2.json
index 4bd41b1866c83c8b0d583a516b03601dd46029a8..68f626632e2b976da7af46513880014a1bf96dde 100644
--- a/data/grid5000/sites/nancy/network_equipments/sgraphene2.json
+++ b/data/grid5000/sites/nancy/network_equipments/sgraphene2.json
@@ -1,4 +1,5 @@
 {
+  "backplane_bps": 176000000000,
   "channels": {
     "naming_pattern": "Po%CHANNELID%"
   },
diff --git a/data/grid5000/sites/nancy/network_equipments/sgraphene3.json b/data/grid5000/sites/nancy/network_equipments/sgraphene3.json
index 59bc65e8b986d6a07825eed0186fe0e10d78ce59..62337a25428ee9a2829ef0e14d93587a4e3432c4 100644
--- a/data/grid5000/sites/nancy/network_equipments/sgraphene3.json
+++ b/data/grid5000/sites/nancy/network_equipments/sgraphene3.json
@@ -1,4 +1,5 @@
 {
+  "backplane_bps": 176000000000,
   "channels": {
     "naming_pattern": "Po%CHANNELID%"
   },
diff --git a/data/grid5000/sites/nancy/network_equipments/sgraphene4.json b/data/grid5000/sites/nancy/network_equipments/sgraphene4.json
index b9709aa41d6b5f177bc6b7c8373c631206c1fbd1..8ba62fc47ad6fc6658fc6087f2116c2f9b52dca4 100644
--- a/data/grid5000/sites/nancy/network_equipments/sgraphene4.json
+++ b/data/grid5000/sites/nancy/network_equipments/sgraphene4.json
@@ -1,4 +1,5 @@
 {
+  "backplane_bps": 176000000000,
   "channels": {
     "naming_pattern": "Po%CHANNELID%"
   },
diff --git a/data/grid5000/sites/nancy/network_equipments/sgriffon1.json b/data/grid5000/sites/nancy/network_equipments/sgriffon1.json
index 1cd6f430d75b9d677bf3c8ea2076cadb71b7b265..9fc730cec72606bffa2f435cd2d7957be65f6937 100644
--- a/data/grid5000/sites/nancy/network_equipments/sgriffon1.json
+++ b/data/grid5000/sites/nancy/network_equipments/sgriffon1.json
@@ -1,4 +1,5 @@
 {
+  "backplane_bps": 176000000000,
   "channels": {
     "naming_pattern": "Po%CHANNELID%"
   },
diff --git a/data/grid5000/sites/nancy/network_equipments/sgriffon2.json b/data/grid5000/sites/nancy/network_equipments/sgriffon2.json
index 0fe08603829667fe1120e85fc3c115b5eae30665..3c1e5a594d3155193f192595ff71d09f82b4dff9 100644
--- a/data/grid5000/sites/nancy/network_equipments/sgriffon2.json
+++ b/data/grid5000/sites/nancy/network_equipments/sgriffon2.json
@@ -1,4 +1,5 @@
 {
+  "backplane_bps": 176000000000,
   "channels": {
     "naming_pattern": "Po%CHANNELID%"
   },
diff --git a/data/grid5000/sites/nancy/network_equipments/sgriffon3.json b/data/grid5000/sites/nancy/network_equipments/sgriffon3.json
index 7b924a5575d2b8146218488a4e498e9501e5ada0..0f98ad6c431b8afe032d0885108ab6153e2fc85d 100644
--- a/data/grid5000/sites/nancy/network_equipments/sgriffon3.json
+++ b/data/grid5000/sites/nancy/network_equipments/sgriffon3.json
@@ -1,4 +1,5 @@
 {
+  "backplane_bps": 176000000000,
   "channels": {
     "naming_pattern": "Po%CHANNELID%"
   },
diff --git a/data/grid5000/sites/nancy/network_equipments/stalc1.json b/data/grid5000/sites/nancy/network_equipments/stalc1.json
index 02dfd40eee349b82f5cef6a90560e906038ecf72..3b91267584da70a8c5126e471a5082de017ab6ee 100644
--- a/data/grid5000/sites/nancy/network_equipments/stalc1.json
+++ b/data/grid5000/sites/nancy/network_equipments/stalc1.json
@@ -1,4 +1,5 @@
 {
+  "backplane_bps": 176000000000,
   "channels": {
     "naming_pattern": "Po%CHANNELID%"
   },
diff --git a/data/grid5000/sites/nancy/network_equipments/stalc2.json b/data/grid5000/sites/nancy/network_equipments/stalc2.json
index 27b394c4958791853b572bf1cf4939bcf2a2d8ba..5b80e526b4281214106c60cc0720f3a351154e8f 100644
--- a/data/grid5000/sites/nancy/network_equipments/stalc2.json
+++ b/data/grid5000/sites/nancy/network_equipments/stalc2.json
@@ -1,4 +1,5 @@
 {
+  "backplane_bps": 176000000000,
   "channels": {
     "naming_pattern": "Po%CHANNELID%"
   },
diff --git a/data/grid5000/sites/nancy/network_equipments/stalc3.json b/data/grid5000/sites/nancy/network_equipments/stalc3.json
index 1d08e8e0183ae3225981e5bd298475fd6b6d178b..644b29ed39e6274d09f031903363e381b2fa07a9 100644
--- a/data/grid5000/sites/nancy/network_equipments/stalc3.json
+++ b/data/grid5000/sites/nancy/network_equipments/stalc3.json
@@ -1,4 +1,5 @@
 {
+  "backplane_bps": 176000000000,
   "channels": {
     "naming_pattern": "Po%CHANNELID%"
   },
diff --git a/data/grid5000/sites/nancy/network_equipments/stalc4.json b/data/grid5000/sites/nancy/network_equipments/stalc4.json
index 912d2f208db8b626872fa2d203682ddad5c7c2ef..97bcafa876ad4ff52c97b61c10f4f5bab6130098 100644
--- a/data/grid5000/sites/nancy/network_equipments/stalc4.json
+++ b/data/grid5000/sites/nancy/network_equipments/stalc4.json
@@ -1,4 +1,5 @@
 {
+  "backplane_bps": 176000000000,
   "channels": {
     "naming_pattern": "Po%CHANNELID%"
   },
diff --git a/generators/input/sites/nancy/net-links/gw-nancy.yaml b/generators/input/sites/nancy/net-links/gw-nancy.yaml
index e68d3536db9eff196a84b2a7b0390ec6f87438b6..e5bc4c788ff682d2f95ffe43945a7c7f30dd71e3 100644
--- a/generators/input/sites/nancy/net-links/gw-nancy.yaml
+++ b/generators/input/sites/nancy/net-links/gw-nancy.yaml
@@ -1,6 +1,6 @@
 ---
 gw-nancy:
-  model: HP Procurve 5406zl
+  model: HP Procurve 5406zl J8697A
   kind: router
   site: nancy
   snmp_community: public
@@ -11,10 +11,12 @@ gw-nancy:
       addresses:
         - 172.16.79.254
   routes: {}
-
+  backplane_bps: 346000000000
   linecards:
     1:
       naming_pattern: "%LINECARD:A%%PORT%"
+      backplane_bps: 14400000000
+      model: J8702A
       kind: other
       rate: 1000000000
       ports:
@@ -98,6 +100,8 @@ gw-nancy:
           uid: fgrelon1
     2:
       naming_pattern: "%LINECARD:A%%PORT%"
+      backplane_bps: 14400000000
+      model: J8708A
       kind: switch
       rate: 1000000000
       ports:
@@ -105,6 +109,8 @@ gw-nancy:
         4: sgriffon2
     3:
       naming_pattern: "%LINECARD:A%%PORT%"
+      backplane_bps: 14400000000
+      model: J8708A
       kind: switch
       rate: 1000000000
       ports:
@@ -113,6 +119,8 @@ gw-nancy:
         4: sgraphene4
     4:
       naming_pattern: "%LINECARD:A%%PORT%"
+      backplane_bps: 14400000000
+      model: J8708A
       kind: switch
       rate: 1000000000
       ports:
@@ -130,9 +138,13 @@ gw-nancy:
           uid: sgriffon1
     5:
       naming_pattern: "%LINECARD:A%%PORT%"
+      backplane_bps: 14400000000
+      model: J8707A
       kind: virtual
       rate: 10000000000
       ports:
-        4: renater-nancy
+        4:
+          uid: renater-nancy
+          kind: virtual
   channels:
     naming_pattern: Po%CHANNELID%
diff --git a/generators/input/sites/nancy/net-links/sgraphene1.yaml b/generators/input/sites/nancy/net-links/sgraphene1.yaml
index 1822a4329bbd180d631421e3dd5c491ddd8c2a8b..679cbe1e4284c73f236fe6cfa455c36d8b3f2d9a 100644
--- a/generators/input/sites/nancy/net-links/sgraphene1.yaml
+++ b/generators/input/sites/nancy/net-links/sgraphene1.yaml
@@ -1,23 +1,23 @@
---- 
-sgraphene1: 
+---
+sgraphene1:
   model: 3com 4510G
   kind: switch
   site: nancy
   snmp_community: public
-  vlans: 
+  vlans:
     naming_pattern: Vlan-interface%VLANID%
-    "1": 
+    "1":
       administrative: yes
-      addresses: 
+      addresses:
         - 172.16.79.201
   routes: {}
-
-  linecards: 
-    0: 
+  backplane_bps: 176000000000
+  linecards:
+    0:
       naming_pattern: "GigabitEthernet1/%LINECARD%/%PORT%"
       kind: node
       rate: 10000000000
-      ports: 
+      ports:
         2: graphene-1
         1: graphene-2
         4: graphene-3
@@ -57,11 +57,11 @@ sgraphene1:
         38: graphene-37
         37: graphene-38
         40: graphene-39
-    1: 
+    1:
       naming_pattern: "Ten-GigabitEthernet1/%LINECARD%/%PORT%"
       kind: router
       rate: 100000000
-      ports: 
+      ports:
         2: gw-nancy
-  channels: 
+  channels:
     naming_pattern: Po%CHANNELID%
diff --git a/generators/input/sites/nancy/net-links/sgraphene2.yaml b/generators/input/sites/nancy/net-links/sgraphene2.yaml
index 61ba1aab3188edeb4e9081b2743dc9b243a89959..cd2baa7255b8e53c0df0c180ff8595cd893e8a23 100644
--- a/generators/input/sites/nancy/net-links/sgraphene2.yaml
+++ b/generators/input/sites/nancy/net-links/sgraphene2.yaml
@@ -1,23 +1,23 @@
---- 
-sgraphene2: 
+---
+sgraphene2:
   model: 3com 4510G
   kind: switch
   site: nancy
   snmp_community: public
-  vlans: 
+  vlans:
     naming_pattern: Vlan-interface%VLANID%
-    "1": 
+    "1":
       administrative: yes
-      addresses: 
+      addresses:
         - 172.16.79.202
   routes: {}
-
-  linecards: 
-    0: 
+  backplane_bps: 176000000000
+  linecards:
+    0:
       naming_pattern: "GigabitEthernet1/%LINECARD%/%PORT%"
       kind: node
       rate: 10000000000
-      ports: 
+      ports:
         2: graphene-41
         1: graphene-40
         3: graphene-42
@@ -53,11 +53,11 @@ sgraphene2:
         33: graphene-72
         34: graphene-73
         35: graphene-74
-    1: 
+    1:
       naming_pattern: "Ten-GigabitEthernet1/%LINECARD%/%PORT%"
       kind: router
       rate: 100000000
-      ports: 
+      ports:
         2: gw-nancy
-  channels: 
+  channels:
     naming_pattern: Po%CHANNELID%
diff --git a/generators/input/sites/nancy/net-links/sgraphene3.yaml b/generators/input/sites/nancy/net-links/sgraphene3.yaml
index 3e9df9f11945cdbce5419657fc7ca1b184557f60..b7cbec233f5a7ed97ae52e96c060c7e973163870 100644
--- a/generators/input/sites/nancy/net-links/sgraphene3.yaml
+++ b/generators/input/sites/nancy/net-links/sgraphene3.yaml
@@ -1,23 +1,23 @@
---- 
-sgraphene3: 
+---
+sgraphene3:
   model: 3com 4510G
   kind: switch
   site: nancy
   snmp_community: public
-  vlans: 
+  vlans:
     naming_pattern: Vlan-interface%VLANID%
-    "1": 
+    "1":
       administrative: yes
-      addresses: 
+      addresses:
         - 172.16.79.203
   routes: {}
-
-  linecards: 
-    0: 
+  backplane_bps: 176000000000
+  linecards:
+    0:
       naming_pattern: "GigabitEthernet1/%LINECARD%/%PORT%"
       kind: node
       rate: 10000000000
-      ports: 
+      ports:
         2: graphene-75
         1: graphene-76
         4: graphene-77
@@ -48,11 +48,11 @@ sgraphene3:
         27: graphene-102
         30: graphene-103
         29: graphene-104
-    1: 
+    1:
       naming_pattern: "Ten-GigabitEthernet1/%LINECARD%/%PORT%"
       kind: router
       rate: 100000000
-      ports: 
+      ports:
         2: gw-nancy
-  channels: 
+  channels:
     naming_pattern: Po%CHANNELID%
diff --git a/generators/input/sites/nancy/net-links/sgraphene4.yaml b/generators/input/sites/nancy/net-links/sgraphene4.yaml
index 0cb228e21fab7e28e2c6c0a420abd38a2a29e8f2..2365527b221c4360a3eeae50b4840dbf60a8f7c8 100644
--- a/generators/input/sites/nancy/net-links/sgraphene4.yaml
+++ b/generators/input/sites/nancy/net-links/sgraphene4.yaml
@@ -1,23 +1,23 @@
---- 
-sgraphene4: 
+---
+sgraphene4:
   model: 3com 4510G
   kind: switch
   site: nancy
   snmp_community: public
-  vlans: 
+  vlans:
     naming_pattern: Vlan-interface%VLANID%
-    "1": 
+    "1":
       administrative: yes
-      addresses: 
+      addresses:
         - 172.16.79.204
   routes: {}
-
-  linecards: 
-    0: 
+  backplane_bps: 176000000000
+  linecards:
+    0:
       naming_pattern: "GigabitEthernet1/%LINECARD%/%PORT%"
       kind: node
       rate: 10000000000
-      ports: 
+      ports:
         2: graphene-106
         1: graphene-105
         3: graphene-107
@@ -58,11 +58,11 @@ sgraphene4:
         38: graphene-142
         39: graphene-143
         40: graphene-144
-    1: 
+    1:
       naming_pattern: "Ten-GigabitEthernet1/%LINECARD%/%PORT%"
       kind: router
       rate: 100000000
-      ports: 
+      ports:
         1: gw-nancy
-  channels: 
+  channels:
     naming_pattern: Po%CHANNELID%
diff --git a/generators/input/sites/nancy/net-links/sgriffon1.yaml b/generators/input/sites/nancy/net-links/sgriffon1.yaml
index 4439474251b4eff4fbdc8638b2afcd558f5f4a31..18886665008f4df393a81772f78c6e0a2c70f055 100644
--- a/generators/input/sites/nancy/net-links/sgriffon1.yaml
+++ b/generators/input/sites/nancy/net-links/sgriffon1.yaml
@@ -1,23 +1,23 @@
---- 
-sgriffon1: 
+---
+sgriffon1:
   model: 3com 4500g
   kind: switch
   site: nancy
   snmp_community: public
-  vlans: 
+  vlans:
     naming_pattern: Vlan-interface%VLANID%
-    "1": 
+    "1":
       administrative: yes
-      addresses: 
+      addresses:
         - 172.16.79.205
   routes: {}
-
-  linecards: 
-    0: 
+  backplane_bps: 176000000000
+  linecards:
+    0:
       naming_pattern: "GigabitEthernet1/%LINECARD%/%PORT%"
       kind: node
       rate: 10000000000
-      ports: 
+      ports:
         2: griffon-2
         1: griffon-1
         3: griffon-3
@@ -50,11 +50,11 @@ sgriffon1:
         11: griffon-58
         12: griffon-59
         13: griffon-60
-    1: 
+    1:
       naming_pattern: "Ten-GigabitEthernet1/%LINECARD%/%PORT%"
       kind: router
       rate: 100000000
-      ports: 
+      ports:
         2: gw-nancy
-  channels: 
+  channels:
     naming_pattern: Po%CHANNELID%
diff --git a/generators/input/sites/nancy/net-links/sgriffon2.yaml b/generators/input/sites/nancy/net-links/sgriffon2.yaml
index 920d70ae59af890cc686d47c86a58d412a1ec33e..5709b686fa431ccb7e4aaa6aeaeb0ca037b5457a 100644
--- a/generators/input/sites/nancy/net-links/sgriffon2.yaml
+++ b/generators/input/sites/nancy/net-links/sgriffon2.yaml
@@ -1,23 +1,23 @@
---- 
-sgriffon2: 
+---
+sgriffon2:
   model: 3com 4500g
   kind: switch
   site: nancy
   snmp_community: public
-  vlans: 
+  vlans:
     naming_pattern: Vlan-interface%VLANID%
-    "1": 
+    "1":
       administrative: yes
-      addresses: 
+      addresses:
         - 172.16.79.206
   routes: {}
-
-  linecards: 
-    0: 
+  backplane_bps: 176000000000
+  linecards:
+    0:
       naming_pattern: "GigabitEthernet1/%LINECARD%/%PORT%"
       kind: node
       rate: 10000000000
-      ports: 
+      ports:
         2: griffon-31
         1: griffon-30
         3: griffon-32
@@ -46,11 +46,11 @@ sgriffon2:
         41: griffon-55
         42: griffon-56
         43: griffon-57
-    1: 
+    1:
       naming_pattern: "Ten-GigabitEthernet1/%LINECARD%/%PORT%"
       kind: router
       rate: 100000000
-      ports: 
+      ports:
         1: gw-nancy
-  channels: 
+  channels:
     naming_pattern: Po%CHANNELID%
diff --git a/generators/input/sites/nancy/net-links/sgriffon3.yaml b/generators/input/sites/nancy/net-links/sgriffon3.yaml
index ad19ff2230bd64a314a8274ed042df91949db959..656876312e54a0e4fb00d897f3373634563ff907 100644
--- a/generators/input/sites/nancy/net-links/sgriffon3.yaml
+++ b/generators/input/sites/nancy/net-links/sgriffon3.yaml
@@ -1,23 +1,23 @@
---- 
-sgriffon3: 
+---
+sgriffon3:
   model: 3com 4500g
   kind: switch
   site: nancy
   snmp_community: public
-  vlans: 
+  vlans:
     naming_pattern: Vlan-interface%VLANID%
-    "1": 
+    "1":
       administrative: yes
-      addresses: 
+      addresses:
         - 172.16.79.207
   routes: {}
-
-  linecards: 
-    0: 
+  backplane_bps: 176000000000
+  linecards:
+    0:
       naming_pattern: "GigabitEthernet1/%LINECARD%/%PORT%"
       kind: node
       rate: 10000000000
-      ports: 
+      ports:
         4: griffon-61
         5: griffon-62
         6: griffon-63
@@ -50,11 +50,11 @@ sgriffon3:
         42: griffon-90
         43: griffon-91
         44: griffon-92
-    1: 
+    1:
       naming_pattern: "Ten-GigabitEthernet1/%LINECARD%/%PORT%"
       kind: router
       rate: 10000000000
-      ports: 
+      ports:
         1: gw-nancy
-  channels: 
+  channels:
     naming_pattern: Po%CHANNELID%
diff --git a/generators/input/sites/nancy/net-links/stalc1.yaml b/generators/input/sites/nancy/net-links/stalc1.yaml
index 89c4fdf04d3f9b51ca15b4381d1591ef5861b39b..8a98b7acb37fbbfee1e9c9f8f6f93eb98ea6db9d 100644
--- a/generators/input/sites/nancy/net-links/stalc1.yaml
+++ b/generators/input/sites/nancy/net-links/stalc1.yaml
@@ -11,7 +11,7 @@ stalc1:
       addresses:
         - 172.16.79.224
   routes: {}
-
+  backplane_bps: 176000000000
   linecards:
     0:
       naming_pattern: "GigabitEthernet1/%LINECARD%/%PORT%"
diff --git a/generators/input/sites/nancy/net-links/stalc2.yaml b/generators/input/sites/nancy/net-links/stalc2.yaml
index 2c922db1736e40a952fc91ded105b7db9d0542e3..8534a50d59de8f6a020a21068a235524d60e35b8 100644
--- a/generators/input/sites/nancy/net-links/stalc2.yaml
+++ b/generators/input/sites/nancy/net-links/stalc2.yaml
@@ -11,7 +11,7 @@ stalc2:
       addresses:
         - 172.16.79.225
   routes: {}
-
+  backplane_bps: 176000000000
   linecards:
     0:
       naming_pattern: "GigabitEthernet1/%LINECARD%/%PORT%"
diff --git a/generators/input/sites/nancy/net-links/stalc3.yaml b/generators/input/sites/nancy/net-links/stalc3.yaml
index ca42db96f10d75b878ceda754447ffc79f41e5ff..c34b1fa0b715aae4bde58e9ed270131fb03fdbb9 100644
--- a/generators/input/sites/nancy/net-links/stalc3.yaml
+++ b/generators/input/sites/nancy/net-links/stalc3.yaml
@@ -1,23 +1,23 @@
---- 
-stalc3: 
+---
+stalc3:
   model: 3com 4500G
   kind: switch
   site: nancy
   snmp_community: public
-  vlans: 
+  vlans:
     naming_pattern: Vlan-interface%VLANID%
-    "1": 
+    "1":
       administrative: yes
-      addresses: 
+      addresses:
         - 172.16.79.226
   routes: {}
-
-  linecards: 
-    0: 
+  backplane_bps: 176000000000
+  linecards:
+    0:
       naming_pattern: "GigabitEthernet1/%LINECARD%/%PORT%"
       kind: node
       rate: 10000000000
-      ports: 
+      ports:
         2: talc-69
         1: talc-68
         3: talc-70
@@ -56,12 +56,12 @@ stalc3:
         40: talc-103
         41: talc-104
         42: talc-133
-    1: 
+    1:
       naming_pattern: "Ten-GigabitEthernet1/%LINECARD%/%PORT%"
       kind: switch
       rate: 10000000000
-      ports: 
+      ports:
         1: stalc1
         2: stalc4
-  channels: 
+  channels:
     naming_pattern: Po%CHANNELID%
diff --git a/generators/input/sites/nancy/net-links/stalc4.yaml b/generators/input/sites/nancy/net-links/stalc4.yaml
index c29e1d752c8356ea97149de78016bfad68d8e4af..f18a41246de09f81c7bf690f2eccc94c1d8d40fc 100644
--- a/generators/input/sites/nancy/net-links/stalc4.yaml
+++ b/generators/input/sites/nancy/net-links/stalc4.yaml
@@ -11,7 +11,7 @@ stalc4:
       addresses:
         - 172.16.79.227
   routes: {}
-
+  backplane_bps: 176000000000
   linecards:
     0:
       naming_pattern: "GigabitEthernet1/%LINECARD%/%PORT%"